Baking-oven.



J. MoADAMS.

BAKING OVEN.

APPLICATION IILBD FEB. 5, 1912. RENEWED SEPT. 22, 1913.

Patented Nov. 11, 1913.

ZKW,

mam 5/,

flTmHJVE'Y COLUMBIA FLANDGRAPH CO. WASHINGTON, D C- JAMES MOADAMS, 0F PORTLAND, OREGON.

BAKING-OVEN.

Application filed February 5, 1912, Serial No. 675,498.

Specification of Letters Patent.

Patented Nov. 1 1, 1913.

Renewed September 22, 1913. Serial No. 791,246.

To all whom it may concern:

Be it known that I, JAMES MoAnAMs, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Baking-Ovens, of which the following is a specification.

The present invention relates to improvements in baking ovens, and has for its object to provide a portable oven in which the heat is applied directly to the walls thereof and then radiated or given out to the articles to be baked.

A further object is to provide a portable oven in which is arranged a separate proof box, for preparing the articles to be finished in the directly heated upper chamber Other objects will appear, and all of which are accomplished by the mechanism illustrated in the accompanying drawing, in which Figure 1 is a plan view of the oven showing the interior compartments in dotted lines. Fig. 2 is a side elevation of same. Fig. 8 is an end view of the oven. Fig. 4- is a perspective detail view of a blower for increasing the draft. Fig. 5 is a detail of a device for lighting the interior of the oven.

Referring to the drawing in detail, 1 designates the upper chamber of the oven, which occupies the entire upper portion, and in which is mounted the grate 12, which lies flush with the floor thereof, adjacent one side of the chamber. At the inner side of the grate is formed a vertical partition 13 which under contain conditions directs the heated air and smoke rearwardly into the chamber, where it is again deflected by the rear and side walls toward the front end and thereby made to thoroughly heat all the walls of the chamber.

Above the front end of the grate, is formed a flue 18, which communicates with the horizontal portion 31, formed in the upper wall and leading to the vertical flue 30, which rises from the front wall at its central point, and is surmounted by the pipe 3. The draft through this flue is controlled by the damper 10, which is reciprocated in the recess 20 by means of the handle 8. After the fire is well started this damper may be closed when all of the heat together with the smoke will pass into the main chamber, where it will be retained until the walls are thoroughly heated, which will afford all heat necessary for baking any articles placed therein. After the oven has been sufficicntly heated, the fire will be discharged into the ash pit 22 which is closed by the door 19, and the fire will become extinguished.

On occasions when itis desired to quicken the fire, the door 5 to the main chamber, which carries upon its inner face a projection 5, which in closed position, snugly fits against the lower end of flue 30 closing it, is swung open by its handle 16 and the chamber is again closed by the blower 7, the end portions 28 of which fit against the shoulders 6 at the sides of the doorway, and the contiguous portion 29, at each side, is inclined outwardly to bring the body 7 to the outer side of the flue. This it will be seen establishes communications from the fire box through the main chamber to the flue, which greatly increases the draft, carrying the heat into the main chamber. The blower may then be removed by the handle 26 and the chamber and flue closed with the door The grate is made to tilt on the rack shaft 11, the fire being held thereon by the door 19, which is secured by the latch 9. By this means the direct heat from the fire may be allowed to pass through the grate into the baking chamber while articles are being baked. In this case the damper 10 will be open so that the smoke will pass through the flues 18 and 31.

Beneath the main chamber of the oven, in its central portion is an auxiliary baking chamber, or proof box 2, which, extends the entire length of the oven and approximately one third its width. This chamber is closed with the door 21, having the latch 17, and it is heated to a comparatively low degree by the transmission of heat through the walls from the fire box. In this manner is provided baking chambers heated to different temperatures to suit the purpose designed.

In order to conveniently place the utensils in the chamber 1 it is necessary to provide a means of illuminating the interior thereof. To this end I have provided the window 14, which is closed by the door 15, hinged upon the pin 27. To the inner face of this door is attached an electric lamp 24 upon the socket 26 which is inclosed by the casing 25. Upon the farther side of the window is fixed a plate 23, against which the door 15 snugly fits and thereby completely closes the opening. When door 15 is closed the lamp will illuminate the entire chamber 1, and when no light is desired within, that door may be swung open, carrying the lamp to the exterior, when it will serve for illuminating the room. The door 34 is secured at right angles to the inner face of door 15, adjacent the hinged edge thereof, and as the outer door is opened the inner door will wing through the are indicated at 33 until it strikes the inner face of plate 23 and thereby closes the window.

The walls of the oven are made of heavy non-combustible material which will absorb the heat and give it out again for a considerable time. By this means any desired degree of heat may be maintained. There is thus no danger of over heating, while it is possible to apply the exact amount of heat desired, whereby a more satisfactory product is obtained than can be had by other methods.

Having described my invention what 1 claim is- 1. A baking oven comprising top, bottom and side walls, a bakin chamber in the upper portion thereof, a re box disposed at the front of the oven at one side and communicating at its rear with the baking chamber, a flue leading from the latter at the front end thereof, a flue leading from the fire box to the first mentioned flue, a door to said baking chamber, having a horizontal projection on its inner face, which, in closed position, is adapted to fit against and close the lower end of the flue leading therefrom, and a supplemental door for closing said chamber having side portions to close against jambs at the inner face of the wall, while the body thereof is curved outwardly to encompass the opening of said flue, for producing a draft from the fire box through said chamber.

2. A portable oven comprising top, bottom and side walls, a baking chamber therein having a window in its wall, a closure for said window comprising a door having two members united along one edge, at right angles to each other and hingedly secured by their united edges in said window, and a lamp fixed to the inner face of the outer member, whereby, when the outer member is closed the chamber will be illuminated, and when the lamp is swung outwardly to illuminate the surrounding space the inner member will close the opening.

In testimony whereof I aflix my signature in the presence of two witnesses.

JAMES MoADAMS.

Witnesses Rosoon P. HURST, M. L. PRATT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

